fix some multi_apps task (#243) * fix chrome * fix: fix proxy setup * feat&fix: add proxy support in setup and remove hardcoded proxy from example * fix tasks * fix chrome finished * fix * clean chrome_fix code * clean chrome_fix code * fix chrome 2888b4e6-5b47-4b57-8bf5-c73827890774 * fix multiapps * fix chrome 2888b4e6-5b47-4b57-8bf5-c73827890774 * fix some multi_apps tasks * fix some multi_apps tasks --------- Co-authored-by: adlsdztony <zzl0712@connect.hku.hk>